在役压力容器检验的优化方案研究

针对在役压力容器的全面定期检验,提出了以以往检测结果为基础,实现定期检验的优化方案,将因漏检而造成压力容器在大于临界缺陷状态下运行的可能性降至最低,从而在确保结构安全的同时,将工作量和成本降到最低。通过对气罐群试验,证明此优化方案是可行的。

Optimizing Technology for Inspection of In-Service Pressure Vessels

The undetected probability of crack larger than the critical one for a single tank is probably already at very low level, it may be however, still very high for whole flock ones. Aiming at this problem, the fixed amount relation between undetected probability of defect of in-service pressure vessel and the independence examination times is established in the base of examination results before. The ability of nondestructive testing is availably increased, the undetected probability of crack of in-service pressure vessel is controlled within the scope of an enough low and safe level. The air tank's safe function during service time is insured by settling the best of times of independence examination.